55505151111 has 16 divisors (see below), whose sum is σ = 74122915328. Its totient is φ = 36945460800.

The previous prime is 55505151101. The next prime is 55505151127. The reversal of 55505151111 is 11115150555.

It is a happy number.

It is not a de Polignac number, because 55505151111 - 2³³ = 46915216519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55505151101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5649075 + ... + 5658891.

It is an arithmetic number, because the mean of its divisors is an integer number (4632682208).

Almost surely, 2^55505151111 is an apocalyptic number.

55505151111 is a deficient number, since it is larger than the sum of its proper divisors (18617764217).

55505151111 is a wasteful number, since it uses less digits than its factorization.

55505151111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12582.

The product of its (nonzero) digits is 3125, while the sum is 30.

The spelling of 55505151111 in words is "fifty-five billion, five hundred five million, one hundred fifty-one thousand, one hundred eleven".